Ice cream disher



R. J. ALBRECHT ICE CREAM DISHER June 5, 1934.

Filed Nov. 15, 1953 Patented June 5, 1934 UNITED STATES PATENT OFFICEHamilton Beach Manufacturing Company,

Racine, Wis., a corporation of Wisconsin Application November 15, 1933,Serial No. 698,027

4 Claims.

The invention relates generally to ice cream dishers. More particularlythe invention relates to that type of ice cream disher in which theinner end of the scraper blade is operated by a shaft which extends fromone side of the bowl and lengthwise of the handle of the disher and theouter end of the blade is journaled in an opening or bearing which isadjacent the rim of the bowl and is coaxial with the shaft.

In ice cream dishers of this type, the scraper blade is formed of acurved strip of spring metal and it has been the practice to provide atrunnion on the outer end of the blade and to form the bowl of thinmetal to facilitate its entry into hard ice cream. It has also been thepractice to have the scraper blade removable for repair or replacement,and for this purpose to provide a trunnion on the outer end of the bladethat could be readily removed from the bearing in the bowl. In dishersof this type, it has been customary to have the trunnion project beyondthe outer face of the bowl so that it would not slip out of the bearingin use or in shipment. In practice it has been found, particularly whenserving hard ice cream from a container, that the outer end of thetrunnion is sometimes forced inwardly through the bearing in the bowland will not reseat itself.

One object of the present invention is to provide an ice cream disher ofthe type under consideration in which the trunnion at the outer end ofthe blade embodies novel and improved means for preventing displacementthereof from its bearing during the use of the disher while stillpermitting the scraper blade to be removed for repair or replacement.

Other objects of the invention will appear from the detaileddescription. 7

The invention consists in the several novel features hereinafter setforth and more particularly defined by claims at the conclusion.

In the drawing, Fig. l is a plan of an ice cream disher embodying thepreferred form of the invention. Fig. 2 is a section on line 2--2 ofFig. l. Fig. 3 is a section on an enlarged scale showing the trunnionfor the scraper blade in its operative position in the bearing in thebowl. Fig. 4 is a similar View illustrating the manner in which thetrunnion is prevented from being displaced from the bearing. Fig. 5 isan end view of a disher embodying a modified form of the invention. Fig.6 is a section on line 6-6 of Fig. 5. Fig; 7 is an end view illustratingthe trunnion bearing in the bowl of the disher of Figs. 5 and 6.

The ice cream disher which is shown in Figures 1, 2, 3 and 4 andconstitutes the preferred form of the invention comprises ahemi-spherical bowl 9 which is formed of thin metal and has permanentlysecured thereto a shank 10. The latter extends from the inner side ofthe bowl and embodies a handle 11. A semi-circular scraper blade 12 isadapted to sweep across the bowl from side to side and serves to severand discharge ice cream from the bowl. This scraper is formed of a stripof resilient metal. At its inner end the scraper 12 is fixed to a shaft13 which overlies the shank 10 and extends through a closed bearing 14in the shank and the inner side of the bowl.

A pinion 15 is removably held on the inner end of the shaft 13, and isconfined in a yoke 16 which 7 is formed on the shank adjacent thehandle. This pinion is suitably connected to the shaft so that when itis rotated by a suitable operating lever and rack, as well understood inthe art, the shaft 13 will be rotated to rotate the scraper. 12 aroundthe inside of the bowl and thus to discharge the ice cream from thebowl. The outer end of the scraper is provided with a trunnion 18 whichis adapted to rotate in a hearing 19 in the outer side of the bowl. Thescraper so 12, being formed of a resilient strip, can be flexed into andout of the bowl so the trunnion will be yieldingly held in its bearingin the bowl. The trunnion has a reduced shouldered inner end 20 which isriveted, as at 21 to the scraper so that it is permanently attachedthereto. The trunnion has a cylindrical portion 21 which fits in thebearing 19 and projects slightly from the bowl to support pivotally theouter end of the scraper coaxially with the shaft 13, while the disheris assembled and during its operation. Beyond the cylindrical portion21, the trunnion is annularly grooved to form an outwardly convergent,tapered or conical portion 22 and an annular flange or head 23 at theouter end of the trunnion. The inner face of this flange extendssubstantially transversely to the axis of the trunnion to form an abruptshoulder 24. In assembling the scraper and the bowl, the shaft 13 ispassed through the bearing 14 while the scraper is turned out of thebowl and its inner end is inserted into the pinion 15. After the shaftis placed in its opera tive position, the trunnion 18 is pressedinwardly into the bowl and inserted through the bearing 19. Theresiliency of the scraper 12 permits the trunnion to be sprung into andout of the bearing and serves yieldingly to hold the trunnion in thebearing. In practice, it frequently occurs that the operator, inmanipulating the disher, strikes the end of the trunnion against the icedetermined position or out of the bowl.

is limited in the bowl.

cream can or against comparatively hard ice cream with sufilcient forceto move the trunnion inwardly and defiect it out of alinement with thebearing 19 as illustrated in Fig. 4. When this occurs the trunnion willride on the tapered portion 22 until the shoulder 24 on flange 23strikes the outer side of the bowl. When the ice cream has beendischarged from the disher, the resiliency of the spring is sufiicientto force the trunnion outwardly so its cylindrical bearing portion 21will be re-seated in the bearing 19, the tapered portion 22 serving toguide the cylindrical portion 21 of the trunnion to its bearing. As aresult, whenever from impact against the ice cream can or hard icecream, the trunnion is forced inwardly, it will be arrested so it willnot be entirely displaced from the bearing and the inherent resiliencyof the scraper will restore the trunnion to its operative position inthe bearing 19 in the bowl. This exemplifies a trunnion for the outerend of the scraper which is removable from and insertable in its bearingthrough the inside of the bowl and is provided with means for preventingits unintentional displacement from the bearing in the bowl.

In the modified form of the invention illustrated in Figs. 5, 6 and 7,the trunnion 27 is riveted to the outer end of the scraper and isprovided with a cylindrical bearing portion 28 which fits in a bearing29 in the bowl 30. The trunnion is provided with a radially projectinglug 31 which is adapted to pass through a notch 32 in the bowl andcommunicating with the bear ing 29, when the scraper is rotated into apre- When the scraper with its shaft has been assembled with the bowl,the scraper is rotated to its normal position in the bowl and connectedto the operating mechanism by which its range of movement The lug 31,when the scraper and bowl are assembled, will remain out of registrywith the notch 32 of the bearing 29 in the bowl. During the operation ofthe scraper, it will sweep across the bowl and in this movement the lug31 will not pass into registry with the notch 32. As a result, the lug31, when it is impacted against an ice cream can or hard ice cream, willengage the outer face of the bowl and prevent displacement of thetrunnion from its bearing. When the scraper is to be removed,

claim as new and desire to secure by Letters Patent is:

1. In an ice cream disher of the character described, the combination ofa bowl provided in the rim and outer side portion thereof with abearing, a shank secured to and projecting from the inner side of thebowl and having a handle, a shaft removably mounted on the shank andextending through said inner side of the bowl and lengthwise of theshank, a semi-circular o scraper of resilient material fitting in andadapted to sweep across the bowl and having its inner end secured to theshaft so that it is removable with the latter, and a trunnion forsupporting the outer end of the scraper secured to the latter andinsertable into and removable from the bearing through the inside of thebowl and provided with means located normally exteriorly of the bowl andadapted to coact with the bearing-forming portion of the latter toprevent the trunnion from being disconnected from the bowl when inwardforce is accidentally delivered to the trunnion, said means beingattached fixedly to the outer end of the trunnion and being constructedand arranged so that upon proper manipulation of the trunnion withrespect to the bearing it permits of inward release of the trunnion fromsaid bearing and accompanies the trunnion out of the bearing when thescraper is removed from the bowl.

2. In an ice cream disher of the character described, the combination ofa bowl provided in the rim and outer side portion thereof with abearing, a shank secured to and projecting from the inner side of thebowl and having a handle, a shaft removably mounted on the shank andextending through said inner side of the bowl and lengthwise of theshank, a semi-circular scraper of resilient material fitting in andadapted to sweep across the bowl and having its inner end secured to theshaft so that it is removable with the latter, and a trunnion forsupporting the outer end of the scraper secured fixedly to the latterand insertable into and removable from the bearing through the inside ofthe bowl and provided with an annular groove outside of the bearingforming an integral flange and adapted to coact with the bearing-formingportion of the bowl to prevent the trunnion from being disconnected fromthe bowl when inward force is accidentally delivered to it, said flangebeing of slightly less diameter than the bearing so that when thetrunnion is centered with respect to the bearing it permits the trunnionto be moved inwardly from the bearing in connection with removal of thescraper from the bowl.

3. In an ice cream disher of the character described, the combination ofa bowl provided in the rim and outer side portion thereof with abearing, a shank secured to and projecting from the inner side of thebowl and having a handle, a shaft removably mounted on the shank andextending through said inner side of the bowl and lengthwise of theshank, a semi-circular scraper of resilient material fitting in andadapted to sweep across the bowl and having its inner end secured to theshaft so that it is removable with the latter, and a trunnion forsupporting the outer end of the scraper secured fixedly to the latterand insertable into and removable from the bearing through the inside ofthe bowl and provided with an outwardly tapered portion outside of thebearing and a shoulder-forming flange at its extreme outer end adaptedto coact with the bearing-forming portion of the bowl to prevent thetrunnion from being disconnected from the bowl when inward force isaccidentally delivered to it, said flange being of slightly lessdiameter than the bearing so that when the trunnion is centered withrespect to the bearing it permits the trunnion to be moved inwardly fromthe bearing in connection with removal of the scraper from the bowl.

4. In an ice cream disher of the character described, the combination ofa bowl provided in the rim and outer side portion thereof with abearing, a shank secured to and projecting from the inner side of thebowl and provided with a handle, a shaft removably mounted on the shankand extending through one side of the bowl and lengthwise of the shank,a semi-circular scraper fitting being accidentally displaced inwardlythrough the bearing, the bowl being provided with a notch adjacent tothe bearing through which the lug can pass when the scraper is rotatedto an abnormal position for trunnion removing purposes.

ROBERT J. ALBRECHT.

